Scraper or beater arm for animal scraping or dehairing machines.



A. HANNAFORD.

SGRAPER OR BEA'IER ARM FOR ANIMAL SURAPING OR DEHAIRING MACHINEAPPLICATION TILED JULY 15, 1007.

Batented Aug. 29, '1911.

3 SHEETS-SHEET 1.

Jr 95 r! for:

iii/r 16,5565

,, A. HANNAFORD.

SCRAPER 0R BEATEH ARM FOR ANIMAL SCRAPING 0R DEHAIRING MACHINES.APPLIOATION FILED JULY 15.1907.

1,001,640. Patented Aug. 29, 1911.

(53) all a SHBETB-S1IEET 2.

A. HANNAFORD.

SGRAPER OR HEATER ARM FOR ANIMAL SGRAPING 0R DEHAIRING MACHINES.

APPLICATION PIILEI) JULY 15, 1907.

Patented Aug. 29, 1911.

8 SHEETS-SHEET 3.

UNITED STATES PATENT OFFICE.

ALFRED HANNAFORD, OF CHICAGO, ILLINOIS, ASSIGNOR TO ALLBRIGHT-NELI}COMPANY, A CORPORATION OF ILLINOIS.

SCRAPER 0R BEA'IER ARM FOR ANIMAL SGRAPING OR DEHAIRING MACHINES.

Specification of Letters Patent.

Application filed July 15, 1907.

Patented Aug. 29, 1911. Serial No. 383,835.

To all whom 'it may concern:

Be it known that I, Anuuun I-Lmxaronn, a citizen of the United States,residing at Chicago, in the county of Cook and State "of Illinois, haveinvented certain new and useful Improvements in Scraper or Beater Armsfor Animal Scraping or Dehairing Machines, of which the following is aspecification.

This invention relates to improvements in scraper or beater armsparticularly adapted for use in hog scraping or dchairing machines, andthe primary object of the invention is to construct an improved elasticarm of this character whereby the hair will be scraped from the carcassduring its passage through the machine without injuring the A furtherobject is to construct an improved elastic arm of this character, andimproved means for centralizing or returning the arm to its normalposition after it has passed out of engagement with the carcass toproperly position the same to be again brought into contact with thecarcass.

A further object is to provide an improved pivotally mounted arm of thischaracter and improved yielding means for permitting the arm to assume aproper position according to the size of the carcass and forautomatically centralizing or returning the arm to its normal position.

A further object is to provide an improved flexibly mounted scraper armand improved means for varying the'tension of the arm.

A further object is to provide an improved flexibly mounted rotaryscraper arm.

A further objectis to provide an improved device of this character whichwill be simple, durable and cheap in construction and effective andeflicient in operation.

To the attainment of these ends and the accomplishment of other new anduseful objects, as will appear, the invention consists in the featuresof novelty inthe construction, combinatiorrand arrangement of theseveral parts hereinafter more fully described and claimed and shown inthe accompanying drawings illustrating an exemplification of theinvention, and in 'wh1ch-- Figure 1 is a side elevation of an improveddevice of this character constructed in accordance with the principlesof this inven tion. Fig. 2 is atop plan View of Fig. 1. Fig. 3 is anenlargeddetail sectional view on line 3--3 of Fig. 2. Fig. 4 i513, rearelevation of one of the supporting brackets or members. Fig. 5 is adetail sectional view on line 5-5 of Fig. 1. Fig. 6 is an enlargeddetail View, partly in section, of one of the compensators for the arms.Fig. 7 is a vertical section of a scraping machine illustrating theoperation of the scrapers.

1 indicates a tank and 2, a suitable conveyor movable over the topthereof. Secured on suitable upright or frame members 3--3 are aplurality of shafts, 10, on which the boaters and scrapers indicated asa whole by 5. are secured to rotate therewith. A transverse drive shaft6, issuitably journalcd to the frame members 3--3 on which and the upperbeater shafts pulleys 7 and 8, are socurcd around which belts 9-9 aretrained to drive the upper beater shafts.

Sprocket wheels 10, are secured to the beater shafts 4., and a chain 50,is trained around all the sprocket wheels on the some side of themachine, thereby simultaneously actuating all the beater shafts. A belt51, is trained around pulleys on the drive shaft (3. and the conveyorshaft 52, for actuating the conveyor 2. A suitable track 52, issupported above and between the beater shafts on which the carcasses aresupported to pass between the heaters Secured to said heater shafts area plurality of radially projecting brackets or members 11 arrangeddiametrically opposite each other and each of said members comprisesspaced side arms 12. The body portion 11 of the brackets is pro videdwith a semi-circular recessed portion 13 in the rear face thereof, whichis adapted to receive a portion of the shaft'lO and'each of the membersor brackets 11 is provided with projecting cars or lugs 14, 15c'xtcnding beyond one edge thereof and substantially at right angles tothe arms 1.2. Arranged on the other side of the body port-ion 11 arespaced cars 16.

The lugs (ii-projecting cars 14 are preferably spaced from each otherfor some d stance and are provided with recesses 17 in the rear facesthereof and in thc'adjacent edges. T he lug or projecting ear 15 1spreferably located at a point midway between the lugs or projecting cars14 and is provided with a recessed or cut away portion 18 in the rearface thereof, which extends entirely across said lug or projecting earand in such a position as to register with the recesses 17 in the lugsor projecting ears 1st. The brackets or members 11 .are placed onopposite sides of the shaft 10 so that the scan-circular portions 13will receive the shaft and the bodyportions 11 of the brackets ormembers will surround the shaft. These brackets or members are securedfor rotation with the shaft in any desired 'or suitable manner,preferably by means of bolts or screws 19 which pass through registeringapertures in the ears or projections 16 and the respective lugs orprojecting ears 14: and said bolt or screw 19 is held from displacementin any desired or suitable manner, preferably by means of a nut 20 engaging the threaded extremity thereof preferably beyond the lugs orprojecting ears The bolts 19 and. nuts 20 tend to draw the body portions11 of the brackets or members tightly against the shaft 10 so that whenthe shaft is rotated the brackets or members will rotate therewith. 16are preferably of a width less than the width of the lugs or projectingears 14: so that when the brackets or members are secured in positiolnthe lugs or projections 16 will terminate short of the recesses 17 inthe lugs or projecting ears 14. i

Pivotally supported between the side arms 12 are the beater arms 21,which are pivoted preferably at a point adjacent one extremity thereofby means of-a suitable bolt or axle 22, which preferably passes througha suitable bearing in the arms and also through the extremities of theside arms 12 and may be held against displacement in any desired orsuitable manner. Any numberof these pivotally supported arms 21-may bearranged between the respective pairs of side arms 12, two being shownin the present exemplification of the invention.

Each of the arms 21 is preferably curved and of the configuration shownmore clearly in Fig. 1 of the drawings and extending from one of thefaces thereof and on one side of the pivot and beyond the extremity ofthe side arms 12 are a plurality of ribs or scraper blades 23. The otherextremity of the arms is preferably bifurcated, as at 24-, to formspaced. ears A suitable tubular member or cylinder 26 is providedadjacent one extremity with laterally extending lugs or projections 27,the said extremity or the cylinder being preferably open while the otherextremity thereof is preferably closed by means of a cap 28 having asuitable aperture 29 passing therethrough.

Arranged within the tubular member or cvlinde'r26 is a bolt or rod 30,one extremity of which passes through the aperture and is n*ovided'witha transverse aperture 31 in the head thereof. Sccured'to the otherextremity of the bolt '30 is an adjustable collar 32 which may be heldin position by The lugs or projections means of a suitable nut 33 engagithreaded extremity of the bolt. collar is of a-dian'ieter somewhatsmaller than the internal diameter of the tubu fi member "or cylinder2\3' andv adapted move freelymto the cylinder.

- Arranged within the cyhnder'is a yieldmg member 35 preferably 111 theform or. a

coil spring which surrounds the bolt 30 wi transverse aperture 31therein is of asizeto stand within the bifurcation 21 in the extremityof the pivotally supported arm 21 and is secured to said arm by meansof. a pin or bolt 36 which passes through suitable the aperture 31 inthe bolt 30. lVhen the extremity of the bolt 30 issecu'red to thebifurcated extremity of the pivotally supported arm 21 the freeextremity of the cylinder or tubular member 26 is adapted to standbetween the lug or projecting ear 15 and the respective lug orprojecting ear 1 1, so that the'lugs or projections 2I thereon aperturesin the cars 25 which register with will enter and be pivotally seatedwithin the i respective recess 17 and the recess 18, where by thecylinder or tubular member 26 will the cylinder or tubular member 26will be' moved about its point of pivotal support to perinit the arm 21to assume such a position. These arms 21 are preferably arranged inpairs disposed diametrically opposite to each other and having theirfaces carrying the ribs or scrapers 23 opposed to each other so thatwhen the shaft. 10 is rotate l i I bro ght it'o contact with the carcassto scrapetlie'san ie it passes. through the macliiaie; andf whfefn therespective arms strike the ca cajsstlieyjwill be moved abouttheiripointsfofipiyotal support in the man 11er alread 'desc bet passthe cal ss; withont injuring the same or laceratin the flesh; and afterthe arms have passedlo t of engagement with the the ribs or scraperblades 23 will be 0 'permitthe arms to be pivotally supported. Then inthis posi tion if the arm 21 is moved about its point vention, two arms21 are arranged adjacent each other and the adjacent edges are so shapedas to form an intervening space 37 to permit the arms to pass on eachside of the legs of thecarcass, and also to permit the arms to beindependently yielding so as to contact with the entire surface of the'arcass during its passage through the machine.

The arms 21 may be of any desired size and configuration but arepreferably convex, as shown more clearly in Fig. 5 of the drawings, andmay be provided with a suitable reinforcing rib 38 disposed preferablyadjacent the points of pivotal support for strengthening the arms andfor protecting the bearing.

It will thus be seen that with this improved construction the scraper orbeater arms will be automatically returned to their normal position andthat the arms themselves and the means for returning the arms to theirnormal position are so mounted with relation to each other and to thesupport as to permit the arms to automatically accommodate themselves tothe varying sizes of the carcasses.

In order that the invention mightbe fully understood by those skilled inthe art, the

details of the foregoing embodiment thereof have been thus specificallydescribed, but

hat I claim as new and desire to secure by Letters Patent is:

1. A hog scraper comprising a rotatable shaft, a support clampedthereto, scrapers pivoted to the support provided with scraping blades,cylinders pivoted at their inner ends on the support and spring pressedrods in the cylinders each pivotally connected with one of the scrapers.

2. In a device of the class described a rotatable shaft, a supportrigidly secured therto, metallic beaters pivoted intermediate their endsto the support, and a spring operated rod connected to the support tooscillate and pivotally connected with one end of the beaters adapted toyieldingly hold the heaters in normal position.

3. .In a device of the class described a rotatable shaft, a supportsecured thereto, heaters pivoted to the supportintermediate their ends,blades secured to the heaters, rods pivoted to the inner ends of theheaters, springs on the rods exerting a yielding pressure on the rodsand holding the heaters in operative position and cylinders pivoted onthe supports to oscillate and inclosing the rods and springs.

4. A hog scraper comprising a rotatable shaft, a support secured,thereto, oscillating cylinders secured to the support, scrapers pivotedto the supports and tension mechanism oscillata-ble with theoscillatable cylin dots. and pivotally 'connected with the scrapers Abeater comprising a rotatable shaft,

a support thereon, cylinders provided with connected to the adjacent endof the scraper member for returning said member to its normal positionwith relation to'the support.

7. In combination, a rotatable support, means for rotating the support,a scraper member pivotally mounted intermediate its ends on the support,a tension device, comprising a tubular member having an aperturcd cap onone end, a rod passing through the aperture in said cap and providedwith an enlargement movable in the tubular member, one of the elementsof the tension device being pivotally connected to one end of thescraper member and the other element being pivotally connected to thesupport, and an elastic member disposed Within the tubular member andbetween the closed end thereof and the enlargement on the rod.

8. In combination, a rotatable support, means for rotating the support,a scraper member pivotally mounted intermediate its ends on the support,an oscillating tension device comprising a tubular member having anapertured cap on one end, a rod passing through the aperture in said capand provided with an enlargement movable in the tubular member, one ofthe elements'of the tension device being pivotally connected to one endof the scraper member and the other element being pivotally connected tothe support, a yielding member within the tubular member between theclosed end thereof and the enlargement of the rod and means for varyingthe tension of the said yielding member.

9. In combination, a rotatable support, means for rotating the support,provided with open bearings, an arm pivotally mounted intermediate itsends on the support remote from the bearings, said arm being providedwith scraping blades, a tension device comprising a cylinder having aclosed end, a rod, one extremity of which passes through the closed end,said rod being provided with an enlargement movable within thecylindei', means for pivotally connecting the extremity of the rod tothe adjacent end of the arm, said cylinder being provided with lateral'projections adapted to be removably being provided Witlrscrapin-gblades, a ten- -arms being provided with scraping bladesseated in thebearings, an elastic member Within the-cylinder between the end thereofand'the enlargement on the rod and means for rotating the support. I

I0. In combination, a rotatablesupport, providedwith open bearings, anarm pivotally mounted intermediate its ends on the supportremote fromthe bearings, said arm sion devicecomprismg a cylinder having aclosedend, a rod, one extremity of which passes through the closed end,said rod being provided with an enlargement movable-=' within thecylinder, means for pivotally connecting the extremity of the rod tothe. adjacent end of the arm, said cylinder beingv provided with lateralprojections adapted to be removably seated in the bearings, an-

elastic member within the cylinder between the end thereof and theenlargement on the rod, adjustable means for varying the tension of theelastic member, and means for rotating the support.

ll. In combination, a rotatable shaft, supports secured for rotationwith the shaftand extending on opposite sides thereof, an elastic armmounted on each of the supports, said arms being provided with scrapingblades on the opposed faces thereof, oscillating cylinders pivoted attheir ends on the supports and spring pressed rods in the cylinderseachpivotally connected with one of the arms for creating a tension onsaid arms.

12. In' combination, arotatable shaft, oppositely disposed supports,means for re movably securing the supports to the shaft for rotationtherewith, an elastic arm secured to each of the supports, each of saidon one face thereof oscillating cylinders pivoted at their ends on thesupports and spring pressed rods in the cylinders, each pivotallyconnected with one of the arms.

13. in combination a rotatable shaft, oppositely disposed supports,means for removably securing the supports to the shaft for rotationtherewith, an arm mounted intermediate its ends on each of the supports,a separate tension device for each of said arms, said tension devicescomprising telescoping elements, one of said elements being pivotallyconnected to one end of the respective arm, means for detachably andpivot- .a'lly connecting the other element to the support, and anexpansion member disposed be-' tween the said elements adapted toyieldingly hold the same in normal position.

14-. in combination, a rotatable shaft, oppositely disposed supports,means for removably securing the supports to the shaft for rotationtherewith, an arm pivotally mounted intermediate its ends on each of thesupports, a separate oscillating tension device for each of said arms,said tension devices comprising telescoping elements one of saidelements being pivotally connected to one end of the respective arm,means for detachably and pivotally connecting the other element to the,support, a :spring mem-- ber disposed between the said elements andmeans for adjusting the tension of the spring member.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, on this 11th day ofduly A. D.1907.

-ALFRED IIANNAFORD.

Witnesses J. H. JOCHUM, J12, M. CANTwsLL.

